On a use-case diagram, use cases are shown as:
A) squares with their names written inside.
B) rounded rectangles with their names written inside.
C) stickmen symbols with their names written below the symbol.
D) ellipses with their names inside.
E) circles with their names written inside.
D
Explanation: D) These ellipses are connected with actors with a solid line showing the relationships between internal use cases and external actors.
CL
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